JPH0625819U - AF camera - Google Patents

Abstract

(57) [Abstract] [Purpose] To reduce the size of the camera without damaging its appearance. The lens holding member 3 includes an AF lens 31 having an outer shape cut by two planes whose circular outer circumferences are parallel to each other, and a lens holding member 32 which holds the AF lens.
2 has a shape corresponding to the outer shape of the AF lens,
It has a housing portion 32a in which the lens is housed, and a front end portion 32b which is formed in front of the housing portion 32a in the optical axis and has a circular shape with a diameter slightly larger than the circular outer peripheral portion of the AF lens.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an AF camera having an improved structure of a mounting portion of an autofocus (hereinafter referred to as AF) lens.

[0002]

[Prior art]

 Conventionally, AF compact cameras often perform distance measurement by a triangulation method such as a passive method or an infrared active method, and a pair of a pair of distance measuring elements is used to focus the subject light on the upper side of the photographing lens. An AF lens is arranged. As the size of the AF lens is simply reduced in order to miniaturize the camera, there is a problem that the AF lens becomes dark and the long-distance performance deteriorates. For this reason, the AF lenses are generally oval-shaped, in which the vertical direction of the circle is cut flat.

On the other hand, in a conventional AF compact camera, two AF lenses are arranged on the upper side of the taking lens, and when viewed from the front, the image of "a bear with a sharp eye and a wide mouth" is designed, The cuteness was for sale.

[0004]

[Problems to be solved by the device]

 However, since the conventional AF camera described above uses an oval-shaped AF lens, the aforementioned “cub” may become “sleepy eyes” or the oval-shaped AF lens may be tilted. If you use it, you will get "eyes" or, conversely, "angry eyes," which will impair the "pretty" image described above, and the appearance of the camera will deteriorate.

An object of the present invention is to solve the above-mentioned problems and to provide an AF camera that can be downsized without impairing the appearance of the camera.

[0006]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, an AF camera according to the present invention includes an AF lens 31 having an outer shape in which a circular outer circumference is cut by two parallel planes, and a lens holding member 32 for holding the AF lens. In the camera, the lens holding member has a shape corresponding to the outer shape of the AF lens, and is formed in the storage portion 32a in which the AF lens is stored and in the optical axis front side of the storage portion. It is characterized by having a circular outer peripheral portion of the AF lens and a front end portion 32b having a circular shape with a diameter slightly larger than or equal to that of the AF lens.

[0007]

[Action]

 According to the present invention, since the lens holding member accommodates the oval-shaped AF lens in the oval-shaped housing portion, it is not necessary to reduce the lens diameter of the AF lens, and the AF performance is not adversely affected. Further, since the front end portion of the circular shape is located in front of the optical axis of the AF lens, the external appearance of the front surface of the camera is not impaired and the design restrictions are eliminated.

[0008]

【Example】

 Hereinafter, the present invention will be described in detail with reference to the drawings and the like. 1 to 3 are views showing an embodiment of an AF camera according to the present invention. FIG. 1 is a vertical sectional view showing a distance measuring section, FIG. 2 is a front view of FIG. 1, and FIG. 3 is a camera. It is the figure which looked at the whole from the front.

In the AF camera of this embodiment, as shown in FIG. 3, a taking lens 7 is arranged substantially in the center of the camera body 1. The taking lens 7 is located on the upper side of the camera lens 1 toward the right, and has a long and narrow rectangular shape. The optical window 2 is arranged. The optical window 2 is formed of a transparent material, and the distance measuring section 3, the light receiving section 4, the finder 5, and the strobe 6 can be seen through the optical window 2.

As shown in FIG. 1, the distance measuring unit 3 is composed of an AF lens 31, an AF block 32, a distance measuring element 33, a printed board 34 and the like. The AF lens 31 is for focusing the subject light on the distance measuring element 33, and has an outer shape (oval shape) having a linear portion 31a cut by two upper and lower planes whose circular outer circumferences are parallel to each other. There is. The AF lens 31 is attached to the AF block 32.

The AF block 32 is for holding the AF lens 31, etc., and has a shape corresponding to the outer shape of the AF lens 31, as shown in FIG. 1 or 2. Is formed in front of the storage portion 32a in the optical axis and has a circular front end portion 32b formed with a diameter equal to or slightly larger than the diameter φ of the circular outer peripheral portion of the AF lens 31. There is. In the AF block 32, a distance measuring element 33 is arranged behind the AF lens 31, and the distance measuring element 33 is fixed to a printed board 34. The printed board 34 is fixed to the AF block 32 with screws 35.

Since the AF camera of this embodiment is configured as described above, when viewed from the front, the outer appearance of the distance measuring unit 3 is a perfect circle as shown in FIG. Is no longer undermined. At this time, the upper surface of the AF block 32 can be made smaller than that of a conventional circular lens. Another reason for providing the AF lens 31 in the storage portion 32a that is deeper than the front end portion 32b is that when the AF lens 31 is provided in the front end portion 32b, the end surface (particularly the central portion) of the AF lens 31 is more than the AF block 32. This is because there is a possibility that the AF lens 31 may also be projected, and the AF lens 31 may be scratched during handling during assembly or the like.

The present invention is not limited to the embodiment described above, and various modifications can be made. For example, in the portion of the optical window 2 where the distance measuring unit 3, the light receiving unit 4, the viewfinder 5, and the strobe 6 are not provided, printing for improving the appearance is performed on either the front surface or the back surface. May be. Further, the wall from the housing portion 32a of the AF lens 31 to the front end portion 32b having a circular shape may be gradually changed and connected.

[0014]

[Effect of device]

 As described above in detail, according to the present invention, there is an effect that the camera can be downsized without impairing the appearance.

[Brief description of drawings]

FIG. 1 is a vertical sectional view showing a distance measuring unit of an embodiment of an AF camera according to the present invention.

FIG. 2 is a front view of FIG.

FIG. 3 is a front view of the entire camera.

[Explanation of symbols]

 1 camera 2 optical window 3 distance measuring section 31 AF lens 32 AF block 33 distance measuring element 34 printed board 35 screw 4 light receiving section 5 viewfinder 6 strobe 7 shooting lens

Claims (1)

[Scope of utility model registration request] 1. An AF including an AF lens having an outer shape in which a circular outer circumference is cut by two parallel planes, and a lens holding member for holding the AF lens.
In the camera, the lens holding member has a shape corresponding to the outer shape of the AF lens,
And a front end portion having a circular shape that is formed in front of the optical axis with respect to the AF lens and has a diameter equal to or slightly larger than the circular outer peripheral portion of the AF lens. AF camera to do.